套管靴;
First, connect the guide shoe and the casing shoe.
先接好引鞋和套管鞋.
Both the guide shoe and the casing shoe have already been connected.
引鞋和套管鞋都已接好.
Make a wiper trip to the 20 inch casing shoe.
短起下到20英寸套管鞋.
We are connecting the guide shoe and the casing shoe.
我们正在接引鞋和套管鞋.
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